How could i make rotating tiles animation like in this video
You could select all the tiles that are meant to rotated and animate them all together, then offset the animations in the Graph Editor, after selecting all tiles except the first, by sliding (G, X) the start and end keys to the right, then deselect the second tile, and slide the rest of the keys to the right again, deselect the third tile, slide the keys along and so on. Still quite a bit of work, but not as bad as doing everything for each one individually.